(6) A man with a ravenous appetite, who has not lost money and does not
rise at 5 a.m., always eats pork-chops for supper;

(7) A logician, who is in danger of losing money, had better take to
cab-driving;

(8) An earnest gambler, who is depressed though he has not lost money,
is in no danger of losing any;

(9) A man, who does not gamble, and whose appetite is not ravenous, is
always lively;
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(10) A lively logician, who is really in earnest, is in no danger of
losing money;

(11) A man with a ravenous appetite has no need to take to cab-driving,
if he is really in earnest;

(12) A gambler, who is depressed though in no danger of losing money,
sits up till 4 a.m.

(13) A man, who has lost money and does not eat pork-chops for supper,
had better take to cab-driving, unless he gets up at 5 a.m.

(14) A gambler, who goes to bed before 4 a.m., need not take to
cab-driving, unless he has a ravenous appetite;

(15) A man with a ravenous appetite, who is depressed though in no
danger of losing, is a gambler.

Univ. "men"; a = earnest; b = eating pork-chops for supper;
c = gamblers; d = getting up at 5; e = having lost money; h = having a
ravenous appetite; k = likely to lose money; l = lively; m = logicians;
n = men who had better take to cab-driving; r = sitting up till 4.

[N.B. In this Problem, clauses, beginning with "though", are
intended to be treated as _essential_ parts of the Propositions
in which they occur, just as if they had begun with "and".]

3.

(1) When the day is fine, I tell Froggy "You're quite the dandy, old
chap!";

(2) Whenever I let Froggy forget that L10 he owes me, and he begins to
strut about like a peacock, his mother declares "He shall _not_ go out
a-wooing!";

(3) Now that Froggy's hair is out of curl, he has put away his gorgeous
waistcoat;

(4) Whenever I go out on the roof to enjoy a quiet cigar, I'm sure to
discover that my purse is empty;

(5) When my tailor calls with his little bill, and I remind Froggy of
that L10 he owes me, he does _not_ grin like a hyaena;
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(6) When it is very hot, the thermometer is high;

(7) When the day is fine, and I'm not in the humour for a cigar, and
Froggy is grinning like a hyaena, I never venture to hint that he's quite
the dandy;

(8) When my tailor calls with his little bill